Home / 1,598.27-2,205.63-890.14

Finding the Fourth Proportional to 1,598.27, 2,205.63 and 890.14

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Solution

The fourth proportional to 1,598.27, 2,205.63 and 890.14 is: 1,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,598.27 : 2,205.63 = 890.14 : x
  2. Step 2: Convert to fraction form
    1,598.27/2,205.63 = 890.14/x
  3. Step 3: Cross multiply
    1,598.27x = 2,205.63 × 890.14
  4. Step 4: Simplify right side
    1,598.27x = 1,963,313.97
  5. Step 5: Solve for x
    x = 1,963,313.97/1,598.27
  6. Step 6: Final answer
    x = 1,228.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.